麻烦会的大神帮忙注释一上，新手不懂！
日期：2014-05-18 浏览次数：21035 次
麻烦会的大神帮忙注释一下，新手不懂！！！！！
SqlConnection conn = new SqlConnection();//实例化对象
string conStr = @"Data Source=WHIZENDT016\SQLEXPRESS;Initial Catalog=Users;Integrated Security=True";
conn.ConnectionString = conStr;
conn.Open();
SqlCommand cmd = new SqlCommand("select * from Users_id where Id='" + textBox1.Text + "'and Password ='" + textBox2.Text + "'", conn);
SqlDataReader str = cmd.ExecuteReader();
str.Read();
------解决方案--------------------
SqlConnection conn = new SqlConnection();//实例化对象
string conStr = @"Data Source=WHIZENDT016\SQLEXPRESS;Initial Catalog=Users;Integrated Security=True";
conn.ConnectionString = conStr;
conn.Open();
SqlCommand cmd = new SqlCommand("select * from Users_id where Id='" + textBox1.Text + "'and Password ='" + textBox2.Text + "'", conn);
SqlDataReader str = cmd.ExecuteReader();
str.Read();
------解决方案--------------------
- C# code
SqlConnection conn = new SqlConnection();//实例化对象
//數據庫連接字符串
string conStr = @"Data Source=WHIZENDT016\SQLEXPRESS;Initial Catalog=Users;Integrated Security=True";
conn.ConnectionString = conStr;
//打開連接
conn.Open();
//執行sql 命令
SqlCommand cmd = new SqlCommand("select * from Users_id where Id='" + textBox1.Text + "'and Password ='" + textBox2.Text + "'", conn);
//按READER方式執行查詢
SqlDataReader str = cmd.ExecuteReader();
//此次可循環READ，逐條取得結果
str.Read();
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